Evaluation of thermodynamic properties of concrete substrates and cement slurries modified with admixtures

摘要

The study of the creation and the stability of the inter- face between concrete substrates and repair systems needs the knowledge of the thermodynamic properties of mate- rials. The measurement of the surface free energies of liq- uids is realised by means of Wilhelmy plate method on reference liquid and repair products. In order to deter- mine polar and dispersive components, it is necessary to measure the contact angle of these liquids and products on reference solid surfaces and on concrete, mortars and aggregates.